510(k) · Cleared

Cleared

Shadow Trays

K991107510(k) TraditionalCleared Jun 29, 199989-day reviewClass II21 CFR 892.5050

Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly, last Nov 3, 2026

Mick Radio-Nuclear Instruments, Inc. · IYE Accelerator, Linear, Medical

Cleared on Jun 29, 1999 as substantially equivalent to K944315 (Medtec, Inc., 1994) after an 89-day review. Its family tree reaches back 1 generation to 1994. 1 later device descends from it.

Decided: Jun 29, 1999
Review: 89 days
Class: Class II
Product code: IYE
Recalls: None
Predicates: 1

Its longest line of descent runs back 1 generation to K944315 (1994). 1 later device descends from it, 1 citing it directly.

By dateBy generation

Root · 1 generation backK944315 Blocking TrayMedtec, Inc. · 1994
This deviceK991107 Shadow TraysMick Radio-Nuclear Instruments, Inc. · 1999
Descendant · cites it directly · 0 of its ownK023636 Blocking TraySoutheastern Radiation Products, Inc. · 2002

Most influential descendants

Showing 1 of 1 · See all

K023636Blocking TraySoutheastern Radiation Products, Inc. · 2002 · cites it directly0descendants

View FIG. 1 as a table

Line of descent and top descendants

Generation	Number	Device	Applicant	Decided	Recalls
−1	K944315	Blocking Tray	Medtec, Inc.	1994	—
0 (this device)	K991107	Shadow Trays	Mick Radio-Nuclear Instruments, Inc.	1999	—
+1	K023636	Blocking Tray	Southeastern Radiation Products, Inc.	2002	—

Descendants by year cleared

Year cleared	Devices	With a Class I recall
2002	1	0

FIG. 1 — Lineage of K991107, 1994–2002Source: FDA 510(k) summaries, read by 510(k) Report · How lineage is built

Sources: FDA 510(k) database (decision fields), the FDA summary (predicates and indications), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.

Planning a device in IYE? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.

Top candidate predicates for a new IYE device

#1 K252977 Halcyon, Ethos Radiotherapy System (5.0)score 18.8 · 18 generations · no Class I recall
#2 Held for the reportin the report
#3 Held for the reportin the report

Get a 510(k) Report

What was it cleared against? (1)

Devices the submitter claimed this one is substantially equivalent to (*), and reference devices cited for a specific test or feature (†), as written in the FDA summary.

Type	Number	Device	Applicant	Decided	Recalls
*	K944315	Blocking Tray Summary page 1 …icant Name and Address: Mick Radio-Nuclear Instruments, Inc. 1470 Outlook Avenue Bronx, New York 10465 Name of Predicate Devices: (1) MED-TEC, Inc. Beam Blocking Trays (K944315) Classification This device is classified as a class II device according to 21 CFR 892.5050 Performance Standards Performance…	Medtec, Inc.	1994	—

Also cleared against K944315: 2 other devices →

What descends from it? (1)

1 later device cites it directly; ranked here by how many devices descend from each in turn.

Number	Device	Applicant	Decided	Descendants
K023636	Blocking Tray	Southeastern Radiation Products, Inc.	2002	0

Has anything in its family been recalled? (0 Class I)

No FDA recall names this device.

No ancestor or descendant has a Class I recall.

What does this lineage say?

Its one ancestor has no recall.
Of its descendants, K023636 (Southeastern Radiation Products, Inc., 2002) has gone furthest, with 0 descendants of its own.
2 other devices also cite its predicate K944315.

How does its category compare?

All IYE devices

IYE Accelerator, Linear, Medical: FDA decisions, review times, recalls and adverse event reports over 20 years.

FDA decisions per year · IYE

12in 2025

2007high 28 (2012) · low 9 (2024)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · IYE

170in 2025

2007high 239 (2024) · low 44 (2007)2026

Receipt to decision; years with fewer than 3 clearances left blank.

Recalls per year · IYE

1in 2025

2007high 78 (2007) · low 1 (2024)2026

Class I (0 since 2007) Class II/III not classified

Adverse event reports per year · IYE

101in 2025

2007high 280 (2011) · low 66 (2022)2025

MAUDE reports naming product code IYE, not matched to any one device; reports are not rates.

View these four charts as a table

Year	Decisions	Median 510(k) review, days	Recalls (Class I)	MAUDE reports
2007	23	44	78	155
2008	14	69	49	114
2009	20	63	22	174
2010	23	74	27	246
2011	11	94	73	280
2012	28	106	20	128
2013	18	88	11	96
2014	20	100	14	124
2015	20	108	8	100
2016	21	97	7	97
2017	23	94	7	125
2018	21	58	7	85
2019	19	83	2	91
2020	20	67	4	74
2021	19	86	5	68
2022	12	172	3	66
2023	18	129	7	128
2024	9	239	1	81
2025	12	170	1	101
2026	14	120	4	—

What is it indicated for?

Read the full statement (118 words)

In Radiation Therapy, it is often necessary to create irregularly shaped fields to contour to the desired shape of the treatment volume. Irregular shapes can be achieved by supplementing the shaping ability of the treatment machines collimation system with tertiary beam blocks. These Beam Blocks are used to further collimate and contour the treatment field and are often custom formed from low metling alloys containing lead and other high density metals. In order to be used, beam blocks must be supported in the path of the incident beam so that the resultant treatment field is properly defined at the patient surface. Shadow Trays provide a simple system for holding the blocks in position for treatment with pre-defined geometry.

Indications for use read by OCR from a scanned FDA summary, so letters may be misread. Check the PDF before quoting it.

https://510kreport.com/device/K991107 · printed Nov 5, 2026

Cite this page

510(k) Report. “K991107: Shadow Trays.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K991107

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Record history

FDA decision record loaded May 2, 2026
Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
Lineage and recalls computed Nov 3, 2026
Page last updated Nov 3, 2026